Android 仿支付宝中的余额宝收益进度条

一、看效果

二、上代码

package com.framework.widget;import android.app.Activity;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Rect;import android.graphics.RectF;import android.util.AttributeSet;import android.util.DisplayMetrics;import android.view.View;import com.R;/** * @author dahai * @ClassName: （仿支付宝） 收益进度条 * @Description: ${todo} * @date ${date} ${time} * @email 202491024@qq.com * @since $android 进度条*/public class ProfitProgerssBar extends View { //背景色 private static final int DEFAULT_BACK_COLOR = Color.parseColor（"#ffffff"）; //字的颜色 private static final int DEFAULT_TEXT_COLOR = Color.parseColor（"#ffffff"）; //进度条背景颜色 private static final int DEFAULT_PROGRESS_COLOR = Color.parseColor（"#abacaf"）; //进度条默认的高度 private static final float DEFAULT_PROGRESS_HEIGHT =120f; //文字的大小 private static final float DEFAULT_TEXT_SIZE = 50; /*** 收益进度条左右两边margin大小*/ private static final int MARGIN_SIZE = 20; private Context context; /*** 背景颜色的画笔*/ private Paint backgroundPaint; /*** 收益进度颜色的画笔*/ private Paint progressPaint; /*** 画文字的画笔*/ private Paint textPaint; /*** 背景的宽度*/ private int view_background_width; /*** 背景的高度*/ private float view_background_height = DEFAULT_PROGRESS_HEIGHT; /*** 日期*/ private String date = "2016/12/07"; /*** 描叙（百分比/元）*/ private String desc = "2.1234"; /*** 要显示的长度的百分比*/ private int progress = 70; //进度条颜色 private int progress_color = DEFAULT_PROGRESS_COLOR; //背景色 private int progress_back_color = DEFAULT_BACK_COLOR; //字的颜色 private int text_color = DEFAULT_TEXT_COLOR; //字的大小 private float TEXT_SIZE = DEFAULT_TEXT_SIZE; public ProfitProgerssBar（Context context） {super（context）;initView（context）; } public ProfitProgerssBar（Context context, AttributeSet attrs） {super（context, attrs）;initView（context）; } public ProfitProgerssBar（Context context, AttributeSet attrs, int defStyleAttr） {super（context, attrs, defStyleAttr）;initView（context）; } private void initView（Context context） {this.context = context;TypedArray typedArray = this.context.obtainStyledAttributes（R.styleable.ProfitProgerssBar）;progress_back_color = typedArray.getColor（R.styleable.ProfitProgerssBar_progress_backg_color,DEFAULT_BACK_COLOR）;text_color = typedArray.getColor（R.styleable.ProfitProgerssBar_progress_text_color,DEFAULT_TEXT_COLOR）;TEXT_SIZE = typedArray.getDimension（R.styleable.ProfitProgerssBar_progress_text_size,DEFAULT_TEXT_SIZE）;backgroundPaint = new Paint（）;backgroundPaint.setStrokeWidth（10）;backgroundPaint.setColor（progress_back_color）;backgroundPaint.setDither（true）;backgroundPaint.setAntiAlias（true）;progressPaint = new Paint（）;progressPaint.setStrokeWidth（10）;progressPaint.setDither（true）;progressPaint.setAntiAlias（true）;textPaint = new Paint（）;textPaint.setStrokeWidth（10）;textPaint.setDither（true）;textPaint.setAntiAlias（true）;textPaint.setTextSize（TEXT_SIZE）;DisplayMetrics d = new DisplayMetrics（）;（（Activity） context）.getWindowManager（）.getDefaultDisplay（）.getMetrics（d）;view_background_width = d.widthPixels; } /*** 初始化 进度条* @param date* @param desc* @param progress* @param progressColor*/ public void init（String date,String desc,int progress,int progressColor）{this.date = date;this.desc = desc;this.progress = progress;this.progress_color = progressColor; } @Override protected void onDraw（Canvas canvas） {super.onDraw（canvas）;view_background_height = this.getMeasuredHeight（）;RectF r = new RectF（）;r.left = 0;r.top = 0;r.right = view_background_width;r.bottom = view_background_height;////------------------------canvas.drawRect（r, backgroundPaint）;RectF r1 = new RectF（）;r1.left = 0;r1.top = 0;r1.right = view_background_width * progress / 100;r1.bottom = view_background_height;////------------------------progressPaint.setColor（progress_color）;canvas.drawRect（r1, progressPaint）;textPaint.setColor（text_color）;Rect r2 = new Rect（）;textPaint.getTextBounds（date,0,date.length（）,r2）;canvas.drawText（date, MARGIN_SIZE, （view_background_height-r2.top）/2, textPaint）;//日期Rect r3 = new Rect（）;textPaint.getTextBounds（desc,0,desc.length（）,r3）;if（progress>95&&progress<100）{ canvas.drawText（desc, r1.right-textPaint.measureText（desc）-MARGIN_SIZE-30,（view_background_height-r3.top）/2, textPaint）;}else if（progress>=100） { canvas.drawText（desc, r1.right-textPaint.measureText（desc）-MARGIN_SIZE-45,（view_background_height-r3.top）/2, textPaint）;}else { canvas.drawText（desc, r1.right - textPaint.measureText（desc） - MARGIN_SIZE, （view_background_height - r3.top） / 2, textPaint）;}invalidate（）; }}

三、

<com.framework.widget.ProfitProgerssBar android:layout_width="match_parent" android:layout_height="35dp" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:layout_marginTop="10dp" app:progress_back_color="@color/white" app:progress_text_color="@color/white" app:progress_text_size="14dp" android:id="@+id/profitProgerssBar" /><declare-styleable name="ProfitProgerssBar"> <attr name="progress_backg_color" format="color"/> <attr name="progress_text_color" format="color"/> <attr name="progress_text_size" format="dimension"/></declare-styleable>

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